“2.5 inch diameter hail... very heavy rain and winds up to 60 mph. The storm lasted 20-25 minutes from beginning to end. (ABR)”
— NOAA / SPC storm report
Hail in Draper · Jul 25, 2026
NEXRAD logged 19 hail signatures up to 4"; the estimated-size surface reached 2.75" aloft. At 4" — softball or larger — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.
Convective day · Jul 25, 2026 · noon–noon UTC
Severity
The most severe storm Draper has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 100 /100
- Homes exposed
- 27 /100
- Ground truth
- 33 /100
Largest radar-indicated size — a signal of damage potential, not confirmation.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
Evidence / storm surfaces
How Draper saw the hail — from two instruments
Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.
Radar signature field NEXRAD's hail signatures for this storm: the spots the radar detected from above. A detection overhead is not the same thing as a confirmed stone below.
Estimated size field Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.
The storm in context
Where Jul 25, 2026 sits in Draper's hail record.
This was Draper's 9th recorded hail day, arriving 21 days after the Jul 4, 2026 storm. By severity it ranks 1st of the 10 storms we have logged here. Radar put the day's largest stone over Draper at 4" — the largest NEXRAD radar signature.
The Jul 25, 2026 convective day was bigger than Draper: the same system put hail over 303 other tracked cities, 102 of them in South Dakota. Nearest: Murdo (13 miles west, up to 4"); White River (26 miles southwest, up to 1.25"); Fort Pierre (28 miles north, up to 3.5").
These maps are stills. In the app this date is one of 10 Draper storm dates on a live map — both surfaces, the reports, and a replay — and the same map is where you draw the swath. This page rebuilds nightly.
Ground reports
What people on the ground reported
These are storm reports filed with the National Weather Service and released through the NOAA Storm Prediction Center — public-domain observations from spotters, the public, and NWS surveys. We quote each one exactly as filed.
Hail reports
1 reportWind reports
1 report“Winds estimated to be 80 mph or greater. Quarter size hail also occurred. (ABR)”
— NOAA / SPC storm report
Storm forensics
How the storm moved
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Hail was reported over 45 minutes, from to .
Reports came from Wendte — beyond Draper itself.
Severe hail signal
What 4" hail means for Draper roofs.
Two-inch-plus hail is capable of puncturing shingles, breaking skylights or windows, and heavily denting soft materials. The strongest radar bands warrant prompt inspection, but neither the signal nor the footprint confirms damage at a specific address.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$252K
Potential roof exposure — 21 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Claim window
July 2028
Claims from this storm can typically be filed until around July 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
Names and phones for every home in the footprint: at most $4 on top of the $150 plan.
Draper hail history
Other storms in Draper.
Estimated-size surface Aug 10, 2026
0.5"
Estimated-size surface Jul 4, 2026
1"
Estimated-size surface Jul 3, 2026
0.5"
Estimated-size surface Jun 28, 2026
2.5"
Estimated-size surface Jun 27, 2026
0.5"
Estimated-size surface Jun 4, 2026
1"
Estimated-size surface Jun 3, 2026
3"
Estimated-size surface Jun 2, 2026
1"
Estimated-size surface May 30, 2026
1"The next storm won’t wait for you.
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